I know of problem with listed house not disclosed! Not my listing

[Jay Lalik]

Long story short- I tried to buy this house as an investor and then tried to list it as an agent.  The lady is a real piece of work and was offended with my "lowball" offer of $120k. Another agent is listing it.He held an open house and I went as it is a 2 minute walk from my house. He was disinterested because that house won't sell at the listed price.

At the open house I saw that a 5 foot crack in the wall had been filled in and painted.

The damage is not on the owners disclosure.  I feared that it could have been a foundation issue when I walked and videoed the property before I made my initial offer.

Should I tell the agent about this? Do I have a duty as a Realtor to do so or is that overstepping my bounds?

FWIW she is listing a 2000 sq ft 1953 rambler that needs a full rehab for $250k, the comps barely support that in good shape.